An unofficial community extension for RubyLLM. It adds policy-bound, read-only browser Inspect and Extract tools with an offline FakeBackend. The Stagehand Ruby SDK adapter is present but unsupported for live operations until provider egress and cleanup are qualified. The first release also includes explicit URL/SSRF policy, bounded and sanitized results with provenance, durable operation and session lifecycle bookkeeping, budgets, offline Act simulation, and an optional Rails 8 / Active Job adapter. The full live Act protocol is deferred to a later version. The Gem core works in plain Ruby without Rails.